JPS63310629A - Rotary kneader - Google Patents

Abstract

PURPOSE:To efficiently carry out an automatic kneading of e.g. dental impressive material by rotating a cylindrical rotary cup mounted on a rotary disk so as to be apart from the revolving center axis of the rotary disk, with the rotary disk, slanting the cup to the revolving center axis of the rotary disk and, revolving the cup of it own. CONSTITUTION:The rotary disk 1 is horizontally installed and revolved around the revolving center axis 3. The cylindrical rotary cup 24 mounted on the rotary disk 1 to be apart from the revolving axis 3 by a suitable distance is rotated with the rotary disks 1, and is slanted inward to the revolving center axis 3 by a suitable angle and is revolved by the up of its own. As a result, an efficient automatic kneading is carried out.

Description

Detailed Description of the Invention A1. Purpose of the Invention [Industrial Application Field] The present invention relates to a rotary kneading machine, particularly suitable for kneading alginate impression materials used in dental care. Regarding machines.

[Prior art] Alginic acid/silicon impression materials used in dentistry are used after being kneaded, and the kneading method is sometimes carried out by so-called mechanical rotary kneading, which is performed by applying rotation with a machine. be. However, in conventional rotary kneading machines, manual operation of a spatula (kneading wire) is essential, and complete automation is not achieved.

[Problems to be Solved by the Invention] In view of the above-mentioned circumstances, an object (technical problem) of the present invention is to provide rotary kneading that does not require manual labor.

8. Structure and operation of the invention In order to achieve the above-mentioned object, the present invention combines a rotating disk that revolves and a rotating cup that rotates on the rotating disk, and mixes the sample placed in the cup by the rotation of both. It was created based on the basic technical idea of carrying out the following steps.

That is, to explain this based on the principle diagrams shown in FIGS. 3 and 4, a cylindrical cup B is placed on a rotary disk A that rotates around a rotation axis center O. The sample C to be kneaded is placed in the cup B, which is tilted to rotate on its own axis.

The rotation 131iA rotates in the A direction, and the cup B rotates in the mouth direction.

As a result, centrifugal force G is applied to the sample C in the cup B by the rotation 5iA, and the sample C is pressed against the inner wall of the cup B, and air bubbles are removed. At the same time, sample C is stirred by the rotation of cup B, and a sufficiently kneaded state is obtained.

The present invention more specifically provides the construction of a kneading machine.

In other words, the wood mixing machine consists of: ■ a rotary disk that is placed horizontally and rotates around the central axis of rotation; It is characterized by comprising a cylindrical rotary cup that is inclined inward at an appropriate angle with respect to the central axis of rotation of the rotary disk and that rotates by itself.

In this configuration, the rotational speed of the rotary disk, the distance from the rotational center axis of the rotary cup, and the rotational speed and inclination angle are specifically given in the examples described below, but are not limited to these values.

Further, the rotational drive mechanism of the rotary disk and the rotary cup is not limited to the embodiments, and may take various forms within the scope of realizing the technical idea of the present invention.

C. Example An example of the rotary kneading machine of the present invention will be described based on the drawings.

FIGS. 1 and 2 show one embodiment of the same, that is, FIG. 1 shows the overall structure (the rotary disk 1 is transparent),
FIG. 2 is a cross-sectional structural diagram.

In the figure, reference numeral 1 denotes a rotary disk, and a fixed rotation shaft 4 having a rotation center shaft 3 is fixed to a base 2 with a screw 5.
The rotary disk 1 is fixed with screws 8 to a large pulley 7 rotatably attached to the rotation center shaft 3 via a bearing 6. Numeral 9 is a curler that maintains the distance between the bearings 6. The large pulley 7 and the rotation [1] can be fixed together by an appropriate means other than the screw 8 (for example, fixed with an adhesive). As a result, the rotation 791 rotates together with the large pulley 7. On the other hand, a small pulley 11 is attached to the motor shaft 10a of the motor IO, and a belt 12 is wound around the small pulley 11 and the large pulley 7.

A small gear 14 is fixedly installed above the fixed shaft 3, and a large gear 15 meshing with the small gear 14 is rotatably attached to a rotary disk 1 with a rotating shaft 16.

To be more specific, the rotating shaft 16 is formed in the rotary disk 1 through an oval hole 1.
It is rotatably supported by a bearing 17 attached to a.

Furthermore, a pulley 18 that rotates integrally with the large gear 15 is fixed to the rotating shaft 16.

On the opposite side of the large gear 15 across the rotation center axis 3 of the rotary disk 1, a rotary cup mounting stand 20 is fixedly installed, and a rotary cup 24 is rotatably mounted on the rotary cup mounting plate 20 via a bearing 22. is attached to.

To be more specific, in the installation, a bearing pedestal 21 having a cylindrical protrusion at the center is fixed to the base 20, an annular protrusion 23 is protruded from the bottom surface of the rotary cup 24, and these bearing pedestals 21 A rolling bearing 22 is mounted between the protruding portion 23 and the protruding portion 23.

The rotary cup 24 has a cylindrical shape with a bottom, and a sample is put therein for mixing through or through a sample cup, which will be described later. It is set at 35° to 45° with respect to the upper surface, that is, horizontally.

The belt 26 wrapped around the pulley 18 is connected to the intermediate pulley 2.
The belt 24 is wound around the outside of the rotary cup 24 via the belt 7, and the pulley 24 receives a rotational force from the rotation of the pulley 18.The side surface of the zero-rotation cup 24 is provided with an upper rib 24a and a lip 24b, which prevent the belt 26 from detaching. is prevented.

The intermediate pulley 27 is rotatably supported by an intermediate pulley support base 28 fixed to the rotary disk 1.

A sample cup 30 is removably inserted into the rotary cup 24, and the sample 3 to be mixed is placed in the sample cup 30.
1 can be entered.

An example of the specifications of this kneading machine is that the rotation speed of the rotary disk 1 is 11000-130 Orp, the rotation speed of the rotary cup 24 is 660-18 Orp, and the rotation speed of the rotary disk 1 and the rotary cup 24 is 660-18 Orp.
The rotation ratio is 6:1-12:l, and the distance from the rotation center axis 3 to the center of the bottom of the rotation cup 24 is about 10 cm.
It is designed as.

Next, the operation of the rotary kneading machine of this embodiment will be explained.

Transfer the sample 31 to the sample cup 31 or directly to the rotating cup 2.
4 and operate the motor 10.

As the motor 10 rotates, the small pulley 11 rotates at a bell)
The zero rotation disk 1 is transmitted to the large pulley 7 via the pulley 12 and rotates the rotary disk 1 fixed thereto, which rotates in the A direction in FIG.

As the rotary disk 1 rotates, a rotary shaft 16 rotatably mounted on the rotary disk l rotates around the rotation center shaft 3. A large gear 15 is fixed to the rotary shaft 16, and this Since the large gear 15 meshes with the small gear 14 fixed to the rotation center shaft 3, the large gear 15 rotates on its own axis.

The pulley 18 rotates as the large gear 15 rotates, and the zero-rotation cup 24 rotates in the direction of the mouth in FIG. 1 through the belt 26.

Since the rotating cup 24 is inclined inward with respect to the rotation center axis 3, the sample 31 inside the rotating cup 24 is rotated outward◆
The upward force received will be mixed within the rotating cup 24.

Regarding the alginic acid stamping agent made using this kneading machine, the sample cup 30 contains alginic acid powder (approximately 7g
) and water (approximately 17mM) were added in approximately equal amounts, and the
A sufficient kneaded state can be obtained by kneading for about 20 seconds at a rotation speed of 1100 Orpm and a rotation speed of the rotary cup 24 of 12 Orpm.

As described above, according to the rotary kneading machine of this embodiment, rotation #! 1 and the rotary cup 24 are performed by one motor 10 by a mutually interlocking mechanism, and only one power source is required. There are advantages such as the ability to easily obtain a rotation speed suitable for the sample by changing the number appropriately.

The present invention is not limited to the above-described embodiments, and various design changes can be made within the scope of the basic technical idea of the present invention.

That is, although the above-mentioned embodiments have been described with respect to the mixing of alginate impression materials, it is also possible to apply the present invention to other types of mixing required in the dental field (e.g., mixing of silicone impression materials, cement mixing). Of course, the present invention is also applicable not only to this field but also to fields that require similar kneading work (for example, mixing two-component adhesives).

Further, regarding the structure of the kneading machine, the following embodiments are also adopted, and these embodiments are included in the technical scope of the present invention.

(2) In this embodiment, the rotation of the rotary cup 24 is obtained from the revolving motion of the rotary disk 1, but a motor may be added to the rotary cup 24 itself to rotate it independently.

■ Rotating cups 24 are arranged symmetrically with each other across the rotation center axis.
One of them is used as a dummy to apply a load corresponding to the weight of the sample, thereby preventing eccentric vibration caused by high-speed rotation.

21 Effects of the Invention The rotary kneading machine of the present invention includes a rotary disk that is placed horizontally and rotates around a central axis of rotation, and a rotary disk placed on the rotary disk at an appropriate distance #lI from the central axis of rotation of the rotary disk. The rotary cup is placed in a cylindrical shape and rotates together with the rotary disk, is inclined inward at an appropriate angle with respect to the central axis of rotation of the rotary disk, and rotates by itself. The sample placed in the cup is automatically kneaded without any manual intervention, so that even an unskilled person can easily perform the kneading work.

[Brief explanation of the drawing]

The drawings show an embodiment of the rotary kneading machine of the present invention, FIG. 1 is an overall perspective view of one embodiment, FIG. 2 is a vertical cross-sectional structural diagram thereof, and FIGS. FIG. l...Rotating disk, 3...Rotating center shaft, 24...Rotating cup

Claims (1)

[Scope of Claims] A rotating disk placed horizontally and rotating around a central axis of rotation; a rotating disk placed on the rotating disk at an appropriate distance from the central axis of rotation of the rotating disk, and rotating together with the rotating disk; A rotary kneading machine comprising: a cylindrical rotary cup that is inclined inward at an appropriate angle with respect to the central axis of rotation of the rotary disk and rotates by itself.